Gasket seal for liquid containers



5 2 6 n 1.. D R A IN. A R B E E March 29 1927 GASKET SEAL FOR LIQUIb coN'rAINERs Filed Au.. 4. 1926 Patented Mar. 29, 1927.

,UNITED STATES PATENT oFFicE. ,I

EERETT E. BRAINARD, OF ARLINGTON, MASSACHUSETTS.

GASKET SEAL non. LIQUID con-mamans.

application mea Augusta 1926. seriai no. izaimi.

This invention relates to a gasket for the sealing of containers such as glass carboys `0r stoneware jars generally and is particularly designed for use in sealing acid containers.

As is Wellknown, gaskets Generally used of felted material are not well adapted -for this purpose, as the material, if acid-proof, cannot bereadily compressed to conform to theinequalities of the clay Stoppers used on acid carboys generally and the fragile nature of -the 'glass from which the lcontainers are made' necessitates the 'use of a soft acid-proof material readily compressed under the slight pressure applied to the sto per when sealed.

n object of this invention is to provide a gasket which is acid-proof, yet vsoft enough to be easily compressed. I

Another object of this invention is to provide a knitted gasket made suchv that fraying of the edge thereof is avoided.

Still another object is to provide a gasket which may be readily stretched to 'fit the varying sizes of carboy necks.

Fig. 1 shows a forni of my gasket applied to an acid bottle.

Fig. 2 showsa section of a knitted 'cylinder prior .to forming the gasket therefromv.

Fig;` 3 is atop plan of my\gasket. Figs.' 4 and 5' forms. .l In making up .the gaskets Ifirst knit a hollow cylinder 1 from asbestos yarn, as seen in Fig. 2; This cylinder is then formed into a gasket by expanding an end Qiand rolling the expanded end lengthwise of and'- :in Fig. 4. i

In the modified form as seen 1n Fig. 5, the

I 5o yarn is avoided, 'since .the on l of the'completed gasket areV olds ofthe maexternally of the cylinder. The opposite end Bof the cylinder is preferably expanded e to bring the raw edge of'the. fabric towards the outer periphery of the rolled annulus .which when two ends of 4.0i the cylinder are expanded and then folded back toward each other, and then fthe whole'cylinder is bent outwardly to a U shape, thus confining the'twoy ends lbetween, the legs ofthev U thus formed. In this modification, unravelin of the asbestos exposed edges are sections of modified Kiattened has 'the form shown terial, as Well as providing a four ply soft, easily compressible gasket.

In use, the gasket is placed between any two abutting surfaces. As seen in Fig. l, the acid bottle Bv has flanged neck in which glass or stoneware stopper S is placed. The gasket G is placed as shown and -the stopper is wired or otherwise held in 'place on the bottle.

lhe gasket thus provided is impervious to acid, yet is pliable and flexible. Being formed of knitted yarn, there can bel no fraying, as it is formed'of asingle stiand, instead of. having a Warp and Woof.

It is understood that the completed gasket or the material thereof may, if desired, be saturated, treated or incased with any Waterproofing or preserving compound;

"I claim:

l. In a ship ing container for acids or the like, in com ination, an acid bottle liaving an apertured neck, a stopper therefor,

vand a gasketi interposed between said neck and said stopper, said gasket comprising a seamless cylinder of knitted fabric, turned back yupon itself to provide a four-ply ring,

.one -end of the fabric being contained within the turned-back gasket.

2. In a shipping container for acids or the like, in combination, an acid bottle havedge of the fabric within the interior there- 3. The-method of making afring gasket for liquid containers consisting-of forming a hollow, knitted cylinder of asbestos yarn, rolling the fabric back upon itself the full lengthy of the "cylinder to thus form an annulus of at least four layers of asbestosrjj fabric presenting in radial cross section the `form of a spiral. i y, v

4. A one-piece seamless gasket compris-1 ing an annulii's of knitted fabric, presenting in radial cross-section the Yform' vof a spiral.y y

In testimonyr'whe'reof, Iaix my vsignature;

a .iivERETTn'. BRATNARD. i-

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